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Fig. 1 | Nutrition & Metabolism

Fig. 1

From: Relation of 24-hour urinary caffeine and caffeine metabolite excretions with self-reported consumption of coffee and other caffeinated beverages in the general population

Fig. 1

Receiver Operator Characteristic (ROC) curves for weekly dichotomized self-reported caffeinated coffee consumption, based on 24-h urinary caffeine, paraxanthine, theophylline, theobromine (win: 99th percentile winsorised). Sensitivity, specificity and cutoff points are reported in Table 3. AUC: Area under curve [95% CI]

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